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sammy [17]
3 years ago
6

Help!!!!!!! I will make you brainliest

Mathematics
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

(a) The appropriate formula is C = 2πr.  Here r = 14 cm, so

C = 2π)14 cm = 28π cm, or (if we take π to be 22/7), C = 88 cm²

(b) We use the same circumference formula:   C = 2πr  and solve it for r before inserting numeric values:

        C                                                 132 m               7(132 m)

r = --------         and in this case,   r = ------------------- = ------------- = 21 m

      2π                                                [ 2 * (22/7) ]            44

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Daniel [21]
2/18 is the multiple of 1/9


8 0
3 years ago
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3) Valerie works at a local amusement park. She earns $9.80 per hour. She 20 points
NemiM [27]
<h3>Answer:  Choice A</h3><h3>9.80h+10 = 88.40</h3>

===========================================================

Work Shown:

  • h = number of hours worked.
  • 9.80h = amount of money earned after working h number of hours (ignoring the meal bonus).
  • 9.80h+10 = total amount of money earned after adding on the meal bonus.
  • 9.80h+10 = 88.40 is the equation we use since the total 9.80h+10 is the same as the total she earned 88.40 dollars.

--------------------

Extra info (optional section)

If you want to solve for h, then you could follow these steps.

9.80h+10 = 88.40

9.80h = 88.40-10 ... subtract 10 from both sides

9.80h = 78.40

h = 78.40/9.80 .... divide both sides by 9.80

h = 8

Valerie worked 8 hours on Friday.

As a check,

9.80h + 10 = 88.40

9.80*8 + 10 = 88.40

78.40 + 10 = 88.40

88.40 = 88.40

The answer is confirmed.

3 0
3 years ago
3. -1867-6(171-6)+5<br> Do y’all know the answer ?
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Answer:

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Step-by-step explanation:

- 1867 - 6( 171 - 6) =  - 2857 \\  - 2857 + 5 =  - 2852

DO NOT FORGET THE BODMASS law

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What is 0.4 divided by 5.12 in long division
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Start by mult. both 0.4 and 5.12 by 100.  What is 40 divided by 512?

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512 /  40.000
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             4096
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                 64              and so on.   Calculator answer is 0.078125.
3 0
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What is the value of h?
emmainna [20.7K]
The angle on one side of a straight line is 180°, so 40° + 60° + h = 180°.
If you rearrange this you will get h = 180° - 60° - 40°, this will give you: h = 80°.
Hope this helps
5 0
2 years ago
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